SRS Indicator Does Not Come On
The SRS Indicator Light Doesn't Come On1. Turn the ignition switch ON (II), and check to see if the other indicator lights come on (brake system, etc).
Do the other indicator lights come on?
YES - Go to step 2.
NO - Go to step 9.
2. Turn the ignition switch OFF, then disconnect gauge assembly connector B (22P) from the gauge assembly.
3. Check resistance between the No. 16 terminal of gauge assembly connector B (22P) and body ground. There should be 0 - 1.0 Ohm.
Is resistance as specified?
YES - Go to step 4.
NO - Open in the BLK wire of dashboard wire harness A, or faulty body ground terminal. If the body ground terminal is OK, replace dashboard wire harness A.
4. Disconnect gauge assembly connector C (16P) from the gauge assembly.
5. Check for voltage between the No.9 terminal of gauge assembly connector C (16P) and body ground for 6 seconds after turning the ignition switch ON (II). There should be 8.5 V or less.
Is voltage as specified?
YES - Blown SRS indicator bulb or faulty SRS indicator light circuit in the gauge assembly. Check for a blown SRS indicator bulb. If the SRS indicator bulb is OK, replace the gauge assembly.
NO - Go to step 6.
6. Turn the ignition switch OFF.
7. Disconnect SRS unit connector C (8P) from the SRS unit.
8. Connect a voltmeter between the No.9 terminal of gauge assembly connector C (16P) and body ground. Turn the ignition switch ON (II), and measure voltage. There should be 0.5 V or less.
Is the voltage as specified?
YES - faulty SRS unit; replace the SRS unit.
NO - Short to power in the BLU wire of dashboard wire harness A; replace dashboard wire harness A.
9. Turn the ignition switch OFF. Check the No.9 (7.5 A) fuse in the driver's under-dash fuse/relay box
Is the fuse blown?
YES - Go to step 12.
NO - Go to step 10.
10. Disconnect gauge assembly connector B (22P) from the gauge assembly.
11. Connect a voltmeter between the No.11 terminal of gauge assembly connector B (22P) and body ground. Turn the ignition switch ON (II), and measure voltage. There should be battery voltage.
Is there battery voltage?
YES - Faulty SRS indicator light circuit in the gauge assembly, or poor contact at gauge assembly connector B (22P) and the gauge assembly; if the connection is OK, replace the gauge assembly.
NO - Open in the driver's under-dash fuse/relay box No.9 (7.5 A) fuse line, open in the YEL wire of dashboard wire harness A. If the driver's under- dash fuse/relay box is OK, replace dashboard wire harness A.
12. Replace the No.9 (7.5 A) fuse, and check to see if the SRS indicator light comes on.
Does the SRS indicator light come on?
YES - The system is OK at this time.
NO - Short to ground in the driver's under-dash fuse/relay box No.9 (7.5 A) fuse line; then continue troubleshooting.